Question
Consider the following data and corresponding weights. xi Weight (wi) 3.6 7 3.0 3 2.5 2 3.0 8 a. Compute the weighted mean (to decimals).
Consider the following data and corresponding weights.
| xi | Weight (wi) |
| 3.6 | 7 |
| 3.0 | 3 |
| 2.5 | 2 |
| 3.0 | 8 |
a. Compute the weighted mean (to decimals).
b. Compute the sample mean of the four data values without weighting (to decimals). Note the difference in the results provided by the two computations.
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Elementary Number Theory With Applications
Authors: Thomas Koshy
2nd Edition
0080547095, 9780080547091
